Orange Pi5 kernel

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# rotate TFO keys for ipv4/ipv6 and verify that the client does
# not present an invalid cookie.
 
set +x
set -e
 
readonly NETNS="ns-$(mktemp -u XXXXXX)"
 
setup() {
<------>ip netns add "${NETNS}"
<------>ip -netns "${NETNS}" link set lo up
<------>ip netns exec "${NETNS}" sysctl -w net.ipv4.tcp_fastopen=3 \
<------><------>>/dev/null 2>&1
}
 
cleanup() {
<------>ip netns del "${NETNS}"
}
 
trap cleanup EXIT
setup
 
do_test() {
<------># flush routes before each run, otherwise successive runs can
<------># initially present an old TFO cookie
<------>ip netns exec "${NETNS}" ip tcp_metrics flush
<------>ip netns exec "${NETNS}" ./tcp_fastopen_backup_key "$1"
<------>val=$(ip netns exec "${NETNS}" nstat -az | \
<------><------>grep TcpExtTCPFastOpenPassiveFail | awk '{print $2}')
<------>if [ "$val" != 0 ]; then
<------><------>echo "FAIL: TcpExtTCPFastOpenPassiveFail non-zero"
<------><------>return 1
<------>fi
}
 
do_test "-4"
do_test "-6"
do_test "-4"
do_test "-6"
do_test "-4s"
do_test "-6s"
do_test "-4s"
do_test "-6s"
do_test "-4r"
do_test "-6r"
do_test "-4r"
do_test "-6r"
do_test "-4sr"
do_test "-6sr"
do_test "-4sr"
do_test "-6sr"
echo "all tests done"